Ditto's Transform

solution.md|15 lines(434 B)

Ditto's Transform - Solution

Step 1: Decompile ditto.pyc with decompyle3 or pycdc

Step 2: Spot sys.gettrace() anti-debug check

Step 3: Patch the if _check_tracer() in the main function to always jump to the 'tracer detected' branch

Step 4: Realize _derive_key uses 42 + (pid % 2) -> even PID = 42 (correct), odd PID = 43 (wrong)

Step 5: XOR the list with 42